SDXC memory cards are the next generation of flash memory card, based on the new SD 3.0 specification, SDXC will be the natural successor to the popular SDHC card format.

Capacities of the new SDXC memory cards are planned to range from 64GB SDXC up to 2TB SDXC, Sandisk are again one of the front runners having already released a 64GB SDXC card, although Lexar have announced a soon to be released 128GB SDXC card. SDXC Card speeds are to range from 104MB/sec up to a planned 300MB/sec.